The answer is A. Increases.

Here's why:

Modulation index (β) is the ratio of the frequency deviation (Δf) to the modulating frequency (fm). In Frequency Modulation (FM), as the modulation index increases, the bandwidth of the FM wave increases. This is because the number of significant sidebands increases.

In other words, when the modulation index is high, the frequency of the modulating signal changes significantly. This results in a wider spread of frequencies in the FM wave, which means more sidebands with significant amplitude.

So, with an increase in the modulation index of an FM wave, the number of sidebands with significant amplitude will increase.

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The answer is A. Increases.

Here's why:

Modulation index (β) is the ratio of the frequency deviation (Δf) to the modulating frequency (fm). In Frequency Modulation (FM), as the modulation index increases, the bandwidth of the FM wave increases. This is because the number of significant sidebands increases.

In other words, when the modulation index is high, the frequency of the modulating signal changes significantly. This results in a wider spread of frequencies in the FM wave, which means more sidebands with significant amplitude.

So, with an increase in the modulation index of an FM wave, the number of sidebands with significant amplitude will increase.

Knowee AI · Accepted Answer

The answer is A. Increases.

Here's why:

Modulation index (β) is the ratio of the frequency deviation (Δf) to the modulating frequency (fm). In Frequency Modulation (FM), as the modulation index increases, the bandwidth of the FM wave increases. This is because the number of significant sidebands increases.

In other words, when the modulation index is high, the frequency of the modulating signal changes significantly. This results in a wider spread of frequencies in the FM wave, which means more sidebands with significant amplitude.

So, with an increase in the modulation index of an FM wave, the number of sidebands with significant amplitude will increase.

With increase in the modulation index of an FM wave, the number of sidebands with significant amplitude will?A. IncreasesB. DecreasesC. Remains constantD. Increases then DecreasesE. Decreases then increasesSelect one:a. Eb. Ac. Bd. Ce. D

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